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NCP1910
ELECTRICAL CHARACTERISTICS (For typical values T J = 25 ° C, for min/max values T J = ? 40 ° C to +125 ° C, Max T J = 150 ° C,
V CC = 12 V unless otherwise noted)
Symbol
Rating
Pin
Min
Typ
Max
Unit
LLC CONTROL SECTION
DRIVE OUTPUT
T Lr
T Lf
R LOH
R LOL
DT L
I HV,leak
Output voltage rise ? time @ C L = 1 nF, 10 ? 90% of output signal
Output voltage fall ? time @ C L = 1 nF, 10 ? 90% of output signal
Source resistance
Sink resistance
Dead time, measured between 50% of the rise and fall edge
Leakage current on high voltage pins to GND (600 Vdc)
23, 20
23, 20
23, 20
23, 20
23, 20
22, 23, 24
?
?
?
?
268
?
40
20
12
5
327
?
?
?
26
11
386
5
ns
ns
W
W
ns
m A
PROTECTIONS
I BOadj
V BOadjH
t BOK
t BONOTOK
V CS1
V CS2
t CS
Input bias current, BOadj pin
BO comparator hysteresis
BO comparator Integrating Filter Time Constant from High to Low
BO comparator Integrating Filter Time Constant from Low to High
Current ? sense pin level that resets the soft ? start capacitor
Current ? sense pin level that permanently latches off the circuit
Propagation delay from VCS1/2 activation to respective action
5
5
5
5
15
15
15
?
?
?
?
0.95
1.42
?
15
100
150
20
1
1.5
?
?
?
?
?
1.05
1.58
500
nA
mV
m s
m s
V
V
ns
3. In normal operation, when the power supply is un ? plugged, the bulk voltage goes down. At a first crossed level, the PG pin opens. Later,
when the bulk crosses a second level, the LLC turns off. There is no timing link between these events, except the bulk capacitor discharge
slope. However, if for an unknown reason the PFC is disabled (fault, short ? circuit), the PG pin immediately opens and if sufficient voltage
is still present on the bulk (e.g. in high line condition), the LLC will be disabled after a typical time of 5 ms.
4. Guaranteed by design.
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